A Killer Sudoku With No Numbers At All?!

You can try this sensational puzzle from Christoph Seeliger here:

▶TRY OUR SANDWICH SUDOKU APP◀
▶SUPPORT US + ACCESS EXCLUSIVE "CRACKING THE CRYPTIC" PUZZLES/VIDEOS◀

▶SEND US PUZZLES TO SOLVE/CONTACT US◀

▶FOLLOW US◀
Twitter: #crypticcracking
@crypticcracking

▶SOFTWARE◀
Or our own software, which you can access by clicking on the links under the video.

▶ABOUT US◀
Hi! We're Simon Anthony and Mark Goodliffe, two of the UK's most enthusiastic puzzle solvers. We have both represented the UK at the World Sudoku Championships and the World Puzzle Championships. We're also "cryptic crossword" aficionados. Mark is the eleven-time winner of The Times championship and Simon is the former record holder for most consecutive correct solutions to The Listener crossword. We hope we can help your puzzle solving while also introducing you to some of the world's best puzzles.

Thank you for watching!
Simon and Mark

[arkatech]

I can't properly express my enjoyment at watching this man get excited about sudoku.

[christophseeliger]

It‘s really a pleasure to see you that happy solving my puzzle. Not much to add, you found the intended path. While it is hard, I think it is also fair, because with a little experience you always have an idea where to look next. Also thanks to Nathan for the idea.

[catmandont]

Using only Square numbers, in the cages, made this VERY easy for me: Time; 3days 2hours 7minutes 16asprin.

[LOVE..Sherelle]

"sorry maybe I'm being a bit slow"
me: What do you

[GustavoGplay]

"If you wanna have a go yourselves"

Not even in my dreams, my dear friend

[ChannelCorporation]

I'd love to see you do these with an eye tracker so we can see how you're looking at stuff!

[SirCaptainKebap]

"you can't get to 36 in 5 different digits OBVIOUSLY"

me: "yeah. obviously. pff..."

[joeriandries]

this guy: "sorry it took me half an hour to solve this sudoku with no numbers filled in"
me if i would be given this puzzle: "haha, very funny, good jokke" and proceed with throwing it in the trash

[letMeSayThatInIrish]

Solved it in only 4:37 !
And no, that's NOT minutes and seconds ...

[janepak]

i know no one will see this because its old but i finished in around 55 minutes. i’m super proud of myself:)

[DJarr]

I feel like solving this is "easy mode" compared to actually designing a puzzle like that. How on earth do you even begin to create something like this?

[stepheninman]

Me, talking to screen: the 4 resolves... the 4 resolves!
Simon: Ahhhh, now if you see this 4 here...
Me: Glad to help you, bud!

[hannahmusum]

Simon: «I could’ve done that ages ago» Me: Still trying to understand square numbers

[frederikjn]

"I don't know, maybe I'm being slow about it", he says being almost done in under 30 minutes... After 30 minutes, I would still be staring at a blank Sudoku :-D Well done sir, well done

[nickmack]

Watching him always feels like watching Indiana Jones solving a puzzle, it's not sudoku anymore, he's saving the world somehow

[arrowbuilt]

Me: minding my own business

YouTube: want to watch someone solve a sudoku with no numbers?

So here I am!

[boyaintright]

Me: "A blank sudoku puzzle? Sounds easy enough."


Me, two hours later and after actually reading the rules: **dial-up noises**

[mritty]

19:10 the utter joy he feels at seeing a solution come into fruition is just a fantastic thing to witness.

[commonsenseisnt]

One of the best things about this channel is watching Simon act like he's a little kid in a candy store when solving a really challenging puzzle. ;)

[elwynbrooks]

Love how when he solves it the most impressive thing to him is how well OTHER PEOPLE have set the puzzle and not how amazing HE IS at solving it!